./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/geo2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871fa33b0334d5a32c7b72bf8c566167ee8ba89fea0452fc9132a1c10a2cca9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:29:38,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:29:38,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:29:38,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:29:38,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:29:38,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:29:38,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:29:38,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:29:38,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:29:38,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:29:38,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:29:38,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:29:38,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:29:38,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:29:38,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:29:38,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:29:38,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:29:38,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:29:38,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:29:38,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:29:38,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:29:38,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:29:38,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:29:38,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:29:38,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:29:38,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:29:38,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:29:38,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:29:38,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:29:38,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:29:38,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:29:38,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:29:38,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:29:38,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:29:38,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:29:38,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:29:38,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:29:38,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:29:38,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:29:38,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:29:38,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:29:38,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:29:39,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:29:39,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:29:39,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:29:39,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:29:39,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:29:39,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:29:39,024 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:29:39,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:29:39,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:29:39,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:29:39,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:29:39,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:29:39,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:29:39,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:29:39,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:29:39,027 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:29:39,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:29:39,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:29:39,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:29:39,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:29:39,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:29:39,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:29:39,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:29:39,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:29:39,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:29:39,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:29:39,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:29:39,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:29:39,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:29:39,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:29:39,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:29:39,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:29:39,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871fa33b0334d5a32c7b72bf8c566167ee8ba89fea0452fc9132a1c10a2cca9 [2021-10-21 20:29:39,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:29:39,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:29:39,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:29:39,438 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:29:39,439 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:29:39,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/nla-digbench/geo2-ll.c [2021-10-21 20:29:39,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/data/108f71096/363b2850a34c4ad9ab322d2362fadcf3/FLAGe15bad928 [2021-10-21 20:29:40,073 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:29:40,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/sv-benchmarks/c/nla-digbench/geo2-ll.c [2021-10-21 20:29:40,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/data/108f71096/363b2850a34c4ad9ab322d2362fadcf3/FLAGe15bad928 [2021-10-21 20:29:40,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/data/108f71096/363b2850a34c4ad9ab322d2362fadcf3 [2021-10-21 20:29:40,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:29:40,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:29:40,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:29:40,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:29:40,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:29:40,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f69381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40, skipping insertion in model container [2021-10-21 20:29:40,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:29:40,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:29:40,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/sv-benchmarks/c/nla-digbench/geo2-ll.c[525,538] [2021-10-21 20:29:40,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:29:40,788 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:29:40,802 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/sv-benchmarks/c/nla-digbench/geo2-ll.c[525,538] [2021-10-21 20:29:40,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:29:40,828 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:29:40,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40 WrapperNode [2021-10-21 20:29:40,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:29:40,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:29:40,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:29:40,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:29:40,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:29:40,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:29:40,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:29:40,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:29:40,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:29:40,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:29:40,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:29:40,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:29:40,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (1/1) ... [2021-10-21 20:29:40,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:29:40,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:29:40,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:29:40,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:29:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:29:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:29:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:29:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:29:41,284 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:29:41,284 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-21 20:29:41,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:29:41 BoogieIcfgContainer [2021-10-21 20:29:41,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:29:41,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:29:41,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:29:41,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:29:41,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:29:40" (1/3) ... [2021-10-21 20:29:41,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adfb34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:29:41, skipping insertion in model container [2021-10-21 20:29:41,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:29:40" (2/3) ... [2021-10-21 20:29:41,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6adfb34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:29:41, skipping insertion in model container [2021-10-21 20:29:41,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:29:41" (3/3) ... [2021-10-21 20:29:41,296 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll.c [2021-10-21 20:29:41,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:29:41,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 20:29:41,373 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:29:41,381 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:29:41,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-21 20:29:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:41,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 20:29:41,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:41,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 20:29:41,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:29:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:41,440 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-10-21 20:29:41,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:29:41,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83592602] [2021-10-21 20:29:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:41,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:29:41,572 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:29:41,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615507507] [2021-10-21 20:29:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:41,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:41,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:29:41,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:29:41,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:29:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:41,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:29:41,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:29:41,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:29:41,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83592602] [2021-10-21 20:29:41,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:29:41,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615507507] [2021-10-21 20:29:41,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615507507] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:29:41,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:29:41,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:29:41,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993860953] [2021-10-21 20:29:41,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:29:41,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:29:41,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:29:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:29:41,846 INFO L87 Difference]: Start difference. First operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:41,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:41,941 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-10-21 20:29:41,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:29:41,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 20:29:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:41,952 INFO L225 Difference]: With dead ends: 38 [2021-10-21 20:29:41,952 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 20:29:41,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:29:41,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 20:29:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-21 20:29:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-21 20:29:41,987 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-10-21 20:29:41,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:41,987 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-21 20:29:41,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:41,988 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-21 20:29:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 20:29:41,989 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:41,989 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-21 20:29:42,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:42,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:42,210 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:29:42,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:42,211 INFO L82 PathProgramCache]: Analyzing trace with hash 300806046, now seen corresponding path program 1 times [2021-10-21 20:29:42,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:29:42,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328458946] [2021-10-21 20:29:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:42,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:29:42,229 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:29:42,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882374147] [2021-10-21 20:29:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:42,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:42,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:29:42,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:29:42,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:29:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:42,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:29:42,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:29:42,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:29:42,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328458946] [2021-10-21 20:29:42,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:29:42,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882374147] [2021-10-21 20:29:42,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882374147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:29:42,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:29:42,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 20:29:42,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149478124] [2021-10-21 20:29:42,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:29:42,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:29:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:29:42,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:29:42,526 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:42,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:42,605 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-10-21 20:29:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:29:42,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-21 20:29:42,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:42,607 INFO L225 Difference]: With dead ends: 24 [2021-10-21 20:29:42,607 INFO L226 Difference]: Without dead ends: 18 [2021-10-21 20:29:42,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:29:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-21 20:29:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-10-21 20:29:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-21 20:29:42,613 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2021-10-21 20:29:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:42,613 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-21 20:29:42,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-21 20:29:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 20:29:42,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:42,615 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-10-21 20:29:42,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:42,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:42,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:29:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:42,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2016063466, now seen corresponding path program 2 times [2021-10-21 20:29:42,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:29:42,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474660127] [2021-10-21 20:29:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:42,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:29:42,854 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:29:42,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597313687] [2021-10-21 20:29:42,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:29:42,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:42,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:29:42,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:29:42,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:29:42,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:29:42,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:29:42,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 20:29:42,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:29:43,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:29:43,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474660127] [2021-10-21 20:29:43,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:29:43,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597313687] [2021-10-21 20:29:43,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597313687] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:29:43,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:29:43,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 20:29:43,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659382756] [2021-10-21 20:29:43,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:29:43,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:29:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:29:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:29:43,590 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:45,871 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-10-21 20:29:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:29:45,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-21 20:29:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:45,873 INFO L225 Difference]: With dead ends: 27 [2021-10-21 20:29:45,873 INFO L226 Difference]: Without dead ends: 21 [2021-10-21 20:29:45,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 199.0ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:29:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-21 20:29:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-21 20:29:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-10-21 20:29:45,879 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2021-10-21 20:29:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:45,880 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-10-21 20:29:45,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:29:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-10-21 20:29:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 20:29:45,881 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:45,881 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2021-10-21 20:29:45,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-21 20:29:46,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:46,095 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:29:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:46,096 INFO L82 PathProgramCache]: Analyzing trace with hash -271025122, now seen corresponding path program 3 times [2021-10-21 20:29:46,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:29:46,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607073109] [2021-10-21 20:29:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:46,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:29:46,128 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 20:29:46,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212722325] [2021-10-21 20:29:46,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:29:46,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:29:46,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:29:46,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:29:46,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:29:46,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 20:29:46,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:29:46,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:29:46,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 20:29:57,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:29:57,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607073109] [2021-10-21 20:29:57,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 20:29:57,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212722325] [2021-10-21 20:29:57,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212722325] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:29:57,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:29:57,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-21 20:29:57,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040186860] [2021-10-21 20:29:57,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:29:57,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:29:57,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:29:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=2, NotChecked=0, Total=42 [2021-10-21 20:29:57,382 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:27,802 WARN L207 SmtUtils]: Spent 13.84 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-10-21 20:30:31,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:30:31,909 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-21 20:30:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:30:31,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-21 20:30:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:30:31,911 INFO L225 Difference]: With dead ends: 20 [2021-10-21 20:30:31,911 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:30:31,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 29511.9ms TimeCoverageRelationStatistics Valid=40, Invalid=67, Unknown=3, NotChecked=0, Total=110 [2021-10-21 20:30:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:30:31,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:30:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:30:31,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-21 20:30:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:30:31,913 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:30:31,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:30:31,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:30:31,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:30:31,916 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:30:31,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:30:31,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:30:32,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:30:32,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:30:32,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:30:32,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:30:32,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:30:32,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:30:41,026 WARN L207 SmtUtils]: Spent 8.79 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-10-21 20:30:41,720 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:30:41,721 INFO L853 garLoopResultBuilder]: At program point L33-2(lines 33 42) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~z~0 1)) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)) (and (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~x~0 1)) (let ((.cse0 (= ULTIMATE.start_main_~z~0 0))) (and (exists ((v_ULTIMATE.start_main_~x~0_12 Int)) (<= (+ (* v_ULTIMATE.start_main_~x~0_12 ULTIMATE.start_main_~z~0) 1) ULTIMATE.start_main_~x~0)) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (or .cse0 (let ((.cse3 (+ (- 1) ULTIMATE.start_main_~x~0)) (.cse2 (div ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0))) (and (let ((.cse1 (div .cse3 ULTIMATE.start_main_~z~0))) (= (+ (* .cse1 ULTIMATE.start_main_~z~0) 1) (+ .cse1 (* .cse2 ULTIMATE.start_main_~z~0)))) (= (mod .cse3 ULTIMATE.start_main_~z~0) 0) (= (mod .cse2 ULTIMATE.start_main_~z~0) 0)))) (or (= ULTIMATE.start_main_~y~0 0) (and (= 0 (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (not .cse0)))))) [2021-10-21 20:30:41,721 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 42) no Hoare annotation was computed. [2021-10-21 20:30:41,721 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:30:41,721 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:30:41,722 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 36 37) the Hoare annotation is: (or (and (= (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)) (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (or (= ULTIMATE.start_main_~y~0 0) (and (= 0 (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0)) (not (= ULTIMATE.start_main_~z~0 0))))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~x~0 1))) [2021-10-21 20:30:41,722 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-21 20:30:41,722 INFO L860 garLoopResultBuilder]: At program point L44(lines 23 45) the Hoare annotation is: true [2021-10-21 20:30:41,723 INFO L860 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: true [2021-10-21 20:30:41,723 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:30:41,723 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:30:41,723 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:30:41,724 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-21 20:30:41,724 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:30:41,724 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-21 20:30:41,730 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:30:41,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] [2021-10-21 20:30:41,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] [2021-10-21 20:30:41,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:30:41 BoogieIcfgContainer [2021-10-21 20:30:41,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:30:41,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:30:41,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:30:41,755 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:30:41,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:29:41" (3/4) ... [2021-10-21 20:30:41,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:30:41,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-21 20:30:41,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:30:41,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:30:41,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:30:41,803 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 <= cond && x == z + 1) && z == y) || (y == 1 && x == 1)) || ((((\exists v_ULTIMATE.start_main_~x~0_12 : int :: v_ULTIMATE.start_main_~x~0_12 * z + 1 <= x) && 0 <= cond) && (z == 0 || (((-1 + x) / z * z + 1 == (-1 + x) / z + y / z * z && (-1 + x) % z == 0) && y / z % z == 0))) && (y == 0 || (0 == y % z && !(z == 0)))) [2021-10-21 20:30:41,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:30:41,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:30:41,832 INFO L168 Benchmark]: Toolchain (without parser) took 61388.96 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 70.5 MB in the beginning and 74.4 MB in the end (delta: -3.9 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,836 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:30:41,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.29 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 77.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,838 INFO L168 Benchmark]: Boogie Preprocessor took 47.11 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 74.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:30:41,839 INFO L168 Benchmark]: RCFGBuilder took 364.74 ms. Allocated memory is still 102.8 MB. Free memory was 74.9 MB in the beginning and 65.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,845 INFO L168 Benchmark]: TraceAbstraction took 60465.67 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.5 MB in the beginning and 76.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,845 INFO L168 Benchmark]: Witness Printer took 76.12 ms. Allocated memory is still 123.7 MB. Free memory was 76.5 MB in the beginning and 74.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:30:41,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.29 ms. Allocated memory is still 102.8 MB. Free memory was 70.5 MB in the beginning and 77.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.11 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 74.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 364.74 ms. Allocated memory is still 102.8 MB. Free memory was 74.9 MB in the beginning and 65.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 60465.67 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.5 MB in the beginning and 76.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.12 ms. Allocated memory is still 123.7 MB. Free memory was 76.5 MB in the beginning and 74.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 60358.4ms, OverallIterations: 4, TraceHistogramMax: 4, EmptinessCheckTime: 32.1ms, AutomataDifference: 37041.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9596.7ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 33 SDslu, 72 SDs, 0 SdLazy, 114 SolverSat, 25 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 16515.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 29788.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 128 HoareAnnotationTreeSize, 4 FomulaSimplifications, 229 FormulaSimplificationTreeSizeReduction, 97.3ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 9492.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 44.7ms SsaConstructionTime, 810.7ms SatisfiabilityAnalysisTime, 11432.1ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 34 ConstructedInterpolants, 2 QuantifiedInterpolants, 328 SizeOfPredicates, 22 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 13/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant [2021-10-21 20:30:41,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] [2021-10-21 20:30:41,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_12,QUANTIFIED] Derived loop invariant: (((1 <= cond && x == z + 1) && z == y) || (y == 1 && x == 1)) || ((((\exists v_ULTIMATE.start_main_~x~0_12 : int :: v_ULTIMATE.start_main_~x~0_12 * z + 1 <= x) && 0 <= cond) && (z == 0 || (((-1 + x) / z * z + 1 == (-1 + x) / z + y / z * z && (-1 + x) % z == 0) && y / z % z == 0))) && (y == 0 || (0 == y % z && !(z == 0)))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((x + z * y == z * x + 1 && 1 == cond) && (y == 0 || (0 == y % z && !(z == 0)))) || ((1 <= cond && y == 1) && x == 1) RESULT: Ultimate proved your program to be correct! [2021-10-21 20:30:41,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e61fb3-cb6c-4540-ab2c-14a2bc2395e2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...